The well known Gaussian kernel (swiss army knife for SVMs) on dense short-real valued features.
It is computed as
where is the kernel width.
在文件GaussianShortRealKernel.h第31行定义。
公有成员 | |
CGaussianShortRealKernel (int32_t size, float64_t width) | |
CGaussianShortRealKernel (CSimpleFeatures< float32_t > *l, CSimpleFeatures< float32_t > *r, float64_t width, int32_t size=10) | |
virtual | ~CGaussianShortRealKernel () |
virtual bool | init (CFeatures *l, CFeatures *r) |
virtual EKernelType | get_kernel_type () |
virtual const char * | get_name () const |
保护成员 | |
virtual float64_t | compute (int32_t idx_a, int32_t idx_b) |
保护属性 | |
float64_t | width |
CGaussianShortRealKernel | ( | int32_t | size, | |
float64_t | width | |||
) |
CGaussianShortRealKernel | ( | CSimpleFeatures< float32_t > * | l, | |
CSimpleFeatures< float32_t > * | r, | |||
float64_t | width, | |||
int32_t | size = 10 | |||
) |
constructor
l | features of left-hand side | |
r | features of right-hand side | |
width | width | |
size | cache size |
在文件GaussianShortRealKernel.cpp第24行定义。
~CGaussianShortRealKernel | ( | ) | [virtual] |
在文件GaussianShortRealKernel.cpp第31行定义。
float64_t compute | ( | int32_t | idx_a, | |
int32_t | idx_b | |||
) | [protected, virtual] |
compute kernel function for features a and b idx_{a,b} denote the index of the feature vectors in the corresponding feature object
idx_a | index a | |
idx_b | index b |
实现了CKernel。
在文件GaussianShortRealKernel.cpp第41行定义。
virtual EKernelType get_kernel_type | ( | ) | [virtual] |
return what type of kernel we are
实现了CKernel。
在文件GaussianShortRealKernel.h第65行定义。
virtual const char* get_name | ( | ) | const [virtual] |
return the kernel's name
实现了CSGObject。
在文件GaussianShortRealKernel.h第71行定义。
initialize kernel
l | features of left-hand side | |
r | features of right-hand side |
在文件GaussianShortRealKernel.cpp第35行定义。
width
在文件GaussianShortRealKernel.h第86行定义。